FRB 20190825A
A burst from FRB20180916B
- Repeater
- FRB20180916B
- Event ID
- 51101068
- Arrival, 400 MHz
- 2019-08-25 11:48:27.666 UTC
- Right ascension
- 29.593°
- Declination
- 65.731°
How the sub-bursts differ
This burst has 2 sub-bursts. These 8 measurements differ between them and are highlighted below. Everything else is the same for every sub-burst.
| Measurement | Sub-burst 1 | Sub-burst 2 |
|---|---|---|
| Arrival time, 400 MHzMJD | 58720.491986878704 | 58720.49198690841 |
| Arrival time, infinite frequencyMJD | 58720.49188215021 | 58720.491882179915 |
| Width (fitburst)s | 0.001417 | 0.001203 |
| Peak frequencyMHz | 590.9 | 502.7 |
| Lowest frequencyMHz | 522.9 | 418.6 |
| Highest frequencyMHz | 667.7 | 603.8 |
| Spectral index | 120.02 | 31.30 |
| Spectral running | -154.00 | -68.60 |
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Notes
- The pulse emission region was extended during fluence estimation.
Position
ra- 29.593± 0.144degrees
dec- 65.731± 0.149degrees
gl- 129.74degrees
gb- 3.75degrees
Detection and dispersion
bonsai_snr- 51.5
snr_fitb- 121.8
bonsai_dm- 347.8pc cm⁻³
dm_fitb- 349.2526± 0.00993pc cm⁻³
dm_exc_ne2001- 150.8pc cm⁻³
dm_exc_ymw16- 26.5pc cm⁻³
Arrival time
mjd_400Differs between sub-bursts.- 58720.491986878704± 1.61 × 10⁻⁹MJD
mjd_infDiffers between sub-bursts.- 58720.49188215021± 3.39 × 10⁻⁹MJD
Burst shape
bc_width- 0.00590s
width_fitbDiffers between sub-bursts.- 0.001417± 0.0000270s
scat_time- 0.000000s
Flux and spectrum
flux- 3.19± 0.65Jy
fluence- 17.59± 3.11Jy ms
peak_freqDiffers between sub-bursts.- 590.9MHz
low_freqDiffers between sub-bursts.- 522.9MHz
high_freqDiffers between sub-bursts.- 667.7MHz
sp_idxDiffers between sub-bursts.- 120.02± 4.71
sp_runDiffers between sub-bursts.- -154.00± 5.85
Exposure and fluence thresholds
exp_up- 245.35± 68.30hour
exp_low- 0.00± 0.00hour
low_ft_68- 0.0Jy ms
up_ft_68- 4.8Jy ms
low_ft_95- 0.0Jy ms
up_ft_95- 10.6Jy ms
Fit quality
chi_sq- 2031873.203
dof- 2046697
flag_frac- 0.229